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31.
The study examined factors associated with discrimination against gay people in a public referendum aimed at the restriction of gay rights. We tested whether positive and negative intergroup contact with gay people and intergroup contact with another stigmatized minority, the Roma, were associated with how the heterosexual majority voted in the referendum (i.e., discrimination). We tested two mechanisms underlying the link between intergroup contact and discrimination—the mediation by intergroup threat and the mediation by outgroup attitudes. We found that negative contact with both gay people and the Roma was associated with a higher probability of gay discrimination while positive contact was associated with a lower probability of gay discrimination. Intergroup threat, not intergroup attitudes, mediated the link between intergroup contact and discrimination. In the case of contact with gay people, intergroup contact was linked to discrimination through threat from gay people. In the case of contact with Roma, intergroup contact was linked to discrimination through the generalization of threats from the Roma to gay people but not via the generalization of outgroup attitudes. Our research brings novel evidence that contact with one minority can affect discrimination against another minority in both positive and negative way and that perceived threat, but not attitudes, plays a key role in majority's decision to discriminate against gay people. 相似文献
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To study links between rapid ERP responses to fearful faces and conscious awareness, a backward‐masking paradigm was employed where fearful or neutral target faces were presented for different durations and were followed by a neutral face mask. Participants had to report target face expression on each trial. When masked faces were clearly visible (200 ms duration), an early frontal positivity, a later more broadly distributed positivity, and a temporo‐occipital negativity were elicited by fearful relative to neutral faces, confirming findings from previous studies with unmasked faces. These emotion‐specific effects were also triggered when masked faces were presented for only 17 ms, but only on trials where fearful faces were successfully detected. When masked faces were shown for 50 ms, a smaller but reliable frontal positivity was also elicited by undetected fearful faces. These results demonstrate that early ERP responses to fearful faces are linked to observers' subjective conscious awareness of such faces, as reflected by their perceptual reports. They suggest that frontal brain regions involved in the construction of conscious representations of facial expression are activated at very short latencies. 相似文献
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This article introduces a novel approach for the analysis of the dynamics of reasoning processes and explores its applicability for the reasoning pattern called reasoning by assumption. More specifically, for a case study in the domain of a Master Mind game, it is shown how empirical human reasoning traces can be formalized and automatically analyzed against dynamic properties they fulfill. To this end, for the pattern of reasoning by assumption a variety of dynamic properties have been specified, some of which are considered characteristic for the reasoning pattern, whereas some other properties can be used to discriminate among different approaches to the reasoning. These properties have been automatically checked for the traces acquired in experiments undertaken. The approach turned out to be beneficial from two perspectives. First, checking characteristic properties contributes to the empirical validation of a theory on reasoning by assumption. Second, checking discriminating properties allows the analyst to identify different classes of human reasoners. 相似文献
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Tibor Machan 《The Journal of value inquiry》2000,34(2-3):227-247
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To investigate how attentional capture in visual search is affected by generalized top-down search strategies, ERPs and behavioral performance were measured in two experiments where spatially nonpredictive color singleton cues preceded visual search arrays that contained one of two equally likely color singletons. When both singletons served as targets, irrelevant-color singleton cues produced behavioral attentional capture effects and elicited an N2pc component, indicative of a singleton search mode. When responses were required to only one of the two color singletons, the same cues no longer elicited behavioral spatial cuing effects, and the N2pc to these cues was attenuated and delayed, in line with the hypothesis that search was now guided by a feature-specific search strategy. Results demonstrate that the ability of visual singleton stimuli to capture attention is not simply determined by their bottom-up salience, but strongly modulated by top-down task sets. 相似文献
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Tibor Palfai Silas Halperin William J. Hoyer 《Neuropsychology, development, and cognition. Section B, Aging, neuropsychology and cognition》2013,20(2):134-140
It has been suggested that age-related slowing in the execution of mental operations in time-limited visual information processing tasks can affect subsequent memory performance. To investigate this proposal, recognition memory for Chinese symbols displayed in rapid serial visual presentation (RSVP) was assessed in 30 young adults and 33 older adults. The effects of presentation times (500, 1000, 2000, 2500, 3000, and 6000 ms) on target recognition were examined across six study-test trials for each participant. Recognition accuracy was higher for young adults than for older adults, especially at the shorter stimulus durations. Analysis of the time-accuracy functions describing the stimulus durations and amount of repetitions required to equate the performance of younger and older adults indicated that a limited-time mechanism provided an incomplete account for age-related differences in memory for rapidly presented information. 相似文献
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